<?php 
function _pr($val,$val2=1)
{
return "这是一个自定义函数".$val;	
}
$a=_pr("吗？");
echo $a."<hr>";
?>

<form action="" method="GET" >
<input type="text" size=10 name="user"/>
<input type="text" size=20  name="title"/>
<textarea name="content"></textarea>
<input type="submit" name="submit"/>
</form>

<html>
<body>
  <!DOCTYPE html PUBLIC "-//W3C//DTD XHTML 1.0 Transitional//EN" "http://www.w3.org/TR/xhtml1/DTD/xhtml1-transitional.dtd">
<html xmlns="http://www.w3.org/1999/xhtml" dir="ltr" lang="zh-CN">
<head profile="http://gmpg.org/xfn/11">
<meta http-equiv="Content-Type" content="text/html; charset=UTF-8" />
</body>
</html>
